commandhandler: Revert "fix @end for parse*Arguments() helpers"
commandhandler: Revert "fix @end for parse*Arguments() helpers"

This reverts commit f0ac9fccaadeb38eb4355d8cd282e87d6dd0c1fe.

We don't need to extract m_commandOffset from the pointer to the end of
buffer, since we already seek beginning of buffer, that was a horrible
mistake.

azat/boostcache,azat/boostcache,azat/boostcache,azat/boostcache